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Guide

Attribution Without a Pixel

Pixel- and cookie-based tracking has been steadily degraded by iOS privacy changes and third-party cookie deprecation. The good news: you can measure what is working without any of it, using first-party data you already own. Here is how.

By Joris van Huët, Founder & CEOUpdated 2026-06-13

Why pixel-based attribution broke

Opt-outs, capped attribution windows, and cookie loss mean pixels now miss and misattribute a large share of conversions. Patching them with modeled conversions inside each platform just re-introduces the platform's bias.

The first-party alternative

Your Shopify orders and GA4 exports are first-party and complete. Causal modeling on that history estimates each channel's incremental contribution without tracking individual users - privacy-safe by construction, and unaffected by the next browser change.

Find your wasted ad spend in 2 minutes.

Upload 90 days of Shopify and GA4. Get incremental ROAS with confidence intervals. No pixel, no SDK.

Frequently asked questions

Do I need to install anything?

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No - it runs on your existing Shopify + GA4 exports.

Is this affected by iOS or cookie changes?

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No - it uses aggregate first-party data, not user-level tracking.

Causal attribution check

Find your wasted ad spend
in 2 minutes.

Upload 90 days of Shopify and GA4. Get incremental ROAS with confidence intervals. No pixel, no SDK, no integration project. €99 per run.

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